Half to the smith



No Model.)

' W. M. BARBER.

RADIATR Patented Aug. 1'7, 1897.

JJM

UNITED STATES' PATENT EFICE.

WILLIAM M. BARBER, or YsoMERvILLE MASSACHUSE'LTS, ASSIGN OR OF ONE- sErrs.

RADIATOR,

SPECIFICATION forming part offLttel- Patent No. 588,312, dated August 17, 1897.

' Application filed October 19, 1895. Serial No. 566,183. (No modeLl y To all whom t may concern:

Be it known that I, WILLIAM M. BARBER, a citizen of the United States, residing at Somerville', in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Radiators', of which the following' is a full, clear, and exact description, reference being `*had to the accompanying drawings,forming a part of this specixo iication, in explaining its nature.

The invention is an improvement upon that type or form of heating apparatus in which air :is forced or drawn through a chamber containing heatingv pipes or surfaces` and in itsi5 hot condition forced throughV distributingpip'es; and my invention relates to various improvements in the pipe system whereby the circulation of the steam isimproved, interference by the 'water of condensation with go the circulation of the steam avoided, and distribution of the'steam throughout the entire lengths of the pipes maintained, whereby all portions of the system are heated practically alike and cannot become cold because ofthe i 5 extent of the pipe system or rotation of the steam or backing up of the water of condensation, and whereby economy in the manufacture is obtained.

I will now describe my invention in con- ;o nec-tion with the drawings, wherein- Figure l is a View of the heating apparatus or device, showing in elevation the pipe system. Fig. 2 is a View, enlarged, partially in elevation, of one of the steam-receiving head- 35 ers. Fig. 3 is a View in vertical section through the header, showing it as adapted to be used at the exhaust ends of the pipes.

The blower used with thistype of apparatus is not shown, and it is used in its usual 4o manner in connection With the chamber A, inclosed by the casing a, which is preferably of thin metal plates bolted together. Within the chamber is the pipe system,fpreferably in two or more divisions or parts. Two divisions-namely, division B and division O are shown, one being mounted above the other. Each division comprises a receivingheader o andK an exhaust-header 29'.. These headers are castings in the form of a narrow 5o rectangular box, upon one side of which are the lines b5 of bosses, in which the threaded Yopens from the header o'.

holes for receiving. the threaded ends of portions of the pipes of lthe system screw. The yother sidelis plain, excepting near the top or bottom, as the case may be,iwhereV there is a boss b2, in which is formed a relatively small threaded hole. This is at about the center 'of the lengthof the header and at the end of the twov inclined surfaces b3 b4. But one form of header is used, and when employed as a receiving-header the inclined surfaces b3 b4 and boss b2 are upon the upper side, as represented inFigs. l and 2, and when used as an exhaust-header the inclines and hole are upon'the lower side, as represented in Fig. l at b and in Fig. 3. The object of providing the header with the inclines 13194 is for the purpose ot making it convertible, so that when used as anexhaust the waters of'condensation will-'flow down. the inclines to the hole in theboss 192, Which then becomes the outlet. From the header b there extend very nearly horizontally the various lines of pipes in as many rowsas desired. The first section of these pipes l have lettered D. Of course it will be understood that they dip or incline slightly from the header.

' Various-rows of pipes extend to different distances from the header, the upper row extending the farthest and each row shortening in regular order below, and the ends of the pipes are connected with a second series D of pipes by the vertical pipe-sections D2, which a're connected with the ends of the sections D D' by suitable couplings and are made with right and left threaded ends.' The pipes of the section D are of the samewidth.v They in turn are connected by the vertical pipesection D3 with the pipe-section D4,..which contains pipes of the same order as the pipes of section D and whichA open at their ends into the cavity of the exhaust-header h. The steam is supplied to the system through the supply-pi pe E, and the circulation is maintained and the waters of condensation taken from the system by the exhaust-pipe E,which The pipes of the pipe-sections D D4 are slightly inclined to provide for the :How of the waters of condensation tothe exhaust-header b.

It will be seen that ythe pipes connecting the headers b and b are of the same length (See Fig. 3.)

roo i throughout and that therefore the steam is not left in its passage by any one of them long, that this insures a constant and uniform passage of the steam through them all.

It will also be seen that the pipes of the system are not long, that they traverse the casing preferably only three times, and that the exhaust ends of the pipe are not so removed from the receiving ends as to become chilled or cold by the air passing by them. On the contrary, they constantly provide a heating-surface of very nearly the eicieney of the receiving end.

It will also be seen that the waters of condensation pass free and with the steam to the' exhaust pipe or inlet E and at no time retard it in their iiow.

It will further be seen that the construction is cheap and simple and that all parts of the chamber are heated uniformly, so that all parts of the air drawn or forced through the chamber are uniformly heated.

The invention will be practiced if only one division is used. Ordinarily, however, two or more are employed,and in Fig. l I have shown two. One is the counterpart of the other, and the lower one is connected with the supplypipe E by the branch pipe e, in which is a suitable valve,and the exhaust from the lower one may enter a common return-pi pe.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- In a heating system of the character speciiied,the chamber A through which air is forced or drawn, and the pipe system contained in said chamber comprising the steam-reeeivin g header b, and the groups of horizontal pipes D, D and D4, the exhaust-header b' and the vertical sections D2, D3, all the pipes of the said apparatus being of the same size, as and for the purposes described.

IVILLIAM M. BARBER.

In presence of- J. M. DOLAN, F. F. RAYMOND, 2d. 

